[Qt-qml] QSortFilterProxyModel with QML ListView

[Martin Jones]

On Wed, 15 Sep 2010 06:13:02 am ext Cornelius Hald wrote:
> Hi,
> 
> On Tue, 2010-09-14 at 17:48 +0200, Stephen Kelly wrote:
> > Cornelius Hald wrote:
> > > Hi,
> > > 
> > > I've now managed to use my own data model together with a customized
> > > QSortFilterProxyModel to provide sorting and searching for my QML UI. I
> > > still have two open questions, though.
> > > 
> > > 1) Is there a way to animate sorting? I have animations for inserting
> > > and removing data and they are also used when filtering (very nice).
> > > But I would also like to give the user some feedback about changed
> > > sorting as well.
> > 
> > Not in the current design of the QML model handling stuff because
> > QPersistentModelIndexes are not used by QML.
> 
> that's a pity, but I think I can give some other visual indicator just
> to give the user feedback. Currently it's sometimes difficult so see
> that the sorting has changed because it just happens too fast.
> 
> > How do you do animate the items in and out? Undocumented internals or
> > some other way?
> 
> Sorry, but I'm not exactly sure what you are asking. Are you asking how
> I animate the inserts and removes? If yes, I'm using the attached
> signals onAdd() and onRemove() of the ListView element. In my delegate I
> react on those signals and make the delegates shrink/grow and fade
> out/in.

See examples/declarative/modelviews/listview/dynamiclist.qml

-- 
Martin